GRO - The Miracle Cream

Author's Note - This story was originally published on r/sexystories in 2014 by a now-banned account. I haven't been able to find it anywhere else on the internet and am afraid that it'll get removed eventually, so I'm transferring it here (with a few edits to comply with site rules) so that it can be more easily found. Please enjoy! - NWS

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“Bobby do you want…WHAT ARE YOU DOING?”

Jeni had entered her little brother’s room to ask him about dinner, but had instead found in naked from the waist down doing…something!

Now Bobby was scrambling to cover his privates with his bedspread—easily accomplished since, even at 18, he didn’t have much to cover.

“GET OUT!” he was shouting.

“Bobby, were you masturbating?” Jeni asked mockingly, quickly finding amusement in the shameful situation.

“No…” Bobby said. He looked bashful, but something in his voice told her it was the truth.

“Then what?” Jeni put her hands on her hips and thrust out her chin as she asked, hoping to strike a pose of authority. At 19, she was certainly older than Bobby. But at 5’2” and barely 85-pounds, she was not the least bit bigger. If Bobby decided to make her get out, there would be nothing she could do to stop him.

However, Bobby didn’t seem to be in a position to put up much of a fight. His eyes involuntarily flicked to the bed. Following his gaze, Jeni saw what appeared to be a tube of toothpaste.

Bobby saw her looking and made a grab for it, but Jeni was closer and faster—and not covering her naked lower half with a comforter. She snatched it up and read the label. Most of it was printed in an alphabet that looked Russian or something. The product name was in regular letters though.

“G-R-O?”

“It’s pronounced grow,” Bobby said, in a tone like she should have known.

“GRO? What’s it…wait! Bobby, is this what I think it is? Were you rubbing this…?” Jeni couldn’t even finish the sentence as she burst out laughing.

“So what?” Bobby asked, his shame starting to turn to anger.

“Where did you even get this?”

“Adam’s brother ordered it online. Adam found two tubes in his room. He kept one and I took that one.”

“So…” Jeni struggled to keep a straight face. “Does it work?”

“I dunno. This is the first time I’m using it.”

This from Bobby sent Jeni into another fit of laughter. When she recovered she spoke.

“Well, little brother, you probably just smeared your little prick with athlete’s foot medication or something. I’m guessing nothing will happen, but there’s probably a good chance your cock will fall off. Good luck!”

Jeni turned her back and walked out of the room, laughing. She still had the tube of GRO.

Best keep it out of the reach of children. Jeni thought.

She tossed it in her dresser drawer and went back downstairs where dinner was waiting.

Bobby eventually came downstairs for dinner, looking sheepish. He had probably been wondering if Jeni had told their parents what he’d been doing. She hadn’t, of course. Bobby was her annoying little brother, but he didn’t need to be punished for teen male stupidity.

After dinner Jeni, Bobby and their parents watched some television and then went their separate ways. Jeni had noticed Bobby rubbing his crotch through his shorts from time to time. She thought he shouldn’t be so obvious, but maybe she was just looking to see if anything terrible was happening.

She returned to her room after family time. Soon her curiosity got the best of her and she hopped online, seeking reviews for the GRO cream.

She didn’t find much. It was, as she suspected, manufactured in Russia. The site, once translated by her Web browser, revealed a “testimonials” section.

“How much can you trust the testimonials on a big-dick cream site?” she asked herself as she browsed them. The titles said it all.

Mini to mighty.

My wife is never happier.

So so so satisfied.

Penis gigantic.

The translation from Russian to English turned some of the titles and reviews into hilarious mistakes, but one in particular caught Jeni’s eye.

Huge bazooms.

Bazooms? What translation application would translate something to “bazooms?” So she read it.

Huge bazooms. I bought GRO and used it on my penis. It grew massive large. But even better, my wife used it too, on her bazooms. Now her bazooms are GREAT! So big and firm. My huge cock and her epic bazooms make us a sex couple like magic.

Sure! Jeni thought. This GRO stuff makes everything bigger! Buy five tubes! Whatever.

But…

Jeni stepped to the full-length mirror in her room. She looked at herself for a moment. She was tiny and her breasts matched her frame. Even through her thin and tight tank top they barely made bumps. She stripped off her top and looked again.

No bra – she almost never needed one. Her tiny tits stood high on her chest, with small pink nipples hardening in the relative chill of her room. She pinched them and pulled, trying to imagine her tits bigger than they were.

The rest of her body was great, she thought. Flat tummy, skinny thighs. She pushed her shorts down her legs and turned, looking at her ass. It was tight and firm – she was a teenager after all – but kind of flat as well. She had a gap between her thighs at the top, and she kept her pussy shaved, just like all the girls her age. This was partially because it made her feel sexier, but mostly to avoid being mocked in the showers after cheer practice or games. Pubic hair was frowned upon.

Getting sick of looking at her skinny self, the 19-year-old flung herself on her bed.

Nothing she had seen online pointed to GRO being dangerous. She still doubted it would actually work, but what if…?

She opened her drawer and took out the tube. She considered it for a while and then…

“Why not?” She got up and went back to the mirror. She squeezed some of the cream on her hands – it was cold – and she rubbed them together. She touched her tits and noticed the cold cream immediately made a warm sensation on her breasts. She rubbed it all around them. It felt quite good, actually.

She felt her hands getting dry. She wasn’t sure she had gotten full coverage so she reapplied the GRO to her hands and rubbed more all over her tits.

This time, however, she had too much. Her small boobs were fully saturated and so were her hands. She could go rinse the stuff off her hands, but the bathroom was all the way down the hall and she was buck-naked except for her knee-high socks – no state to be walking around the house.

Instead she reached behind her and smeared the extra cream on her flat little butt cheeks. It made the same warming sensation on her ass that it had on her tits. She didn’t have as much to spread around but she rubbed it in as evenly as she could.

She put her tank top and cotton shorts back on once the cream on her tits and ass had dried, then laid down in bed. As soon as she turned off her light the warming sensation on her little boobs and butt increased and she started to feel very drowsy. She rubbed her nipples through the fabric – it felt very good – and quickly drifted off to sleep.

Jeni awoke to morning light filling her room. Her window was directly across from the foot of her bed, but when she looked down towards her feet her, a mound of covers obstructed her gaze.

Groggily she freed an arm and tried to smash the comforter down. But when she did she felt a pain on her chest.

“Ouch!” she complained. She tried to roll over and go back to sleep, but once she reached her side a number of things happened at once.

First, she felt the neckline of her tank top pull painfully at the back of her neck. Then she felt something stop her, like she had a pillow next to her. Finally, when she tried to twist her shorts bit into her ass cheeks and pussy lips simultaneously.

I must have really been moving around last night, she thought, to be this tangled up. She started systematically trying to extract herself from the blankets, sheets and pillows, only to discover they came away easily. She soon found herself uncovered and sitting on the edge of her bed. Her shorts still felt uncomfortably tight, and so did her tank top.

Opening her eyes she saw a female form sitting across for her. Buxom wouldn’t begin to describe this girl. Two massive globes stood out from her chest, clearly artificially enhanced. And her trim thighs were visible up to the openings of the tiniest, sluttiest short cotton shorts Jeni had ever seen. This girl was staring back at Jeni with a disapproving look from a second bed that Jeni didn’t remember being in her room. In fact it was situated inside her mirror…

“AHHH!” Jeni screamed before she got ahold of herself. She sprung to her feet. She immediately noticed that she didn’t move like she used to. Parts of her seemed to have more inertia than they had before…

Standing now, she realized she had been looking at herself. Her tank top was stretched to the limit over tits that looked like they had been designed by a master plastic surgeon. Her top had been tight before, and it still clung to her thin waist, but the neckline was stretched low over her new tits, revealing an immodest amount of cleavage.

Her shorts had shrunk too. No, her ass had grown. Not nearly as much as her tits, but it was a lot rounder, stretching her shorts – which had seemed innocent enough yesterday – into the slutty-looking booty shorts she had seen upon waking up. She bent forward experimentally and felt the shorts pull up into her ass and pussy, making an impressive show of camel toe.

Jeni stood for a while, gawking at herself. Yesterday she had been a skinny teen. Today she looked like a fantasy girl from a teeny-bop porn movie. Yesterday her ponytail of dirty-blond hair had looked girlish. Now it looked like a tossled costume of girlish lust.

All because of these, she thought, reaching up to squeezed her new tits. When she did her knees almost buckled as waves of pleasure coursed through her tits, down to her pussy.

God damn! she thought. She gave them another experimental squeeze and again her pussy ached with pleasure and lust. She felt it get instantly wet. One more squeeze should…

“OOOooooooH! Oh fuck!” she cried aloud as her third squeeze of her new massive tits made an orgasm crash over her. This time her knees did buckle and she kneeled on her floor, compulsively squeezing her tits as he came harder than she ever had before.

Coming down from her orgasmic high, she thought about how much she wanted something inside her. Not just something, but something big. Something like a big, hard…

Oh god, she thought suddenly. If the GRO creamed worked for me, did it work for…?